Tuyere



(Model.)l

G. W. RIGGIN.

. TUYBRB.

No. 248,794. Pateed' Oot. 25,1881.

INTTnn STaTns PaTaNT @Tiersen GEORGE IV. RIGGIN, OE MADISONVILLE, KENTUCKY.

TUYERE..

SPECIFICATION forming part of Letters Patent No. 248,794, dated October 25, 1881.

Application filed June 17, 1881. (Model.)

To all whom it may concern Be it known that I, GEORGE W. RIGGIN, a citizen of the United States of America, residing at Madisonville, in the county of Hopkins and State of Kentucky,have invented certain new and useful Improvements in Tuyeres; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or gures of reference marked thereon, which form a part of this specification.

This invention has relation to improvements in tuyeres for forges and furnaces; and its object is to provide a tuyere-iron the face or gate of which is kept cool by the effects ol" water, and thus preserve the tuyere-face and prevent the adherence of slag and cinders as they drop from the lire above; also to deliver a direct and vertical blast to thcire.

My invention consists in the novel construclion and combination of parts, as will be hereinafter more fully setforth, and specifically claimed.

In the accompanying dra-wings, Figure l is a plan view ofthe tuyere attachment. Fig. 2 is a transverse sectional view, taken through the, line x fr, and Fig. 3 is a detail view.

The letter A represents the chamber or box, made of the desired diameter and length, open at both ends, and formed with holes near the upper end for the passage of pipes.

The letter B represents pipes passed horizontally through the holes in the cylinder. They form the face ofthe tuyere, and serve as grate-bars on which the tire rests, and they are formed with screw -threads and engage with the female screws inthe sides of the drums C and C', substantially as shown in Fig. l of the drawings. These drums are cylindrical in form, preferably, and are formed with a solid head onone end and with the other end perforated lo receive the induction and eduction pipes.

The letter l) represents a movable bottom placed over the lower end of the chamber, and held rmly in place bythe sprin g a. This bottom has anges on the under side which ernbrace the edges of the spring a, and by these means the bottom is guided and held in position.

The spring a is held to the chamber-wall and in position by a bolt, l, extending through the struck-up part of the spring and the wall ofthe chamber. A handle is attached to the bottom, by which it is removed and replaced.

The letter E is the blast-pipe or nozzle of the tuyere. This is securely 'ixed in the wall ofthe tuyerc-chamber and communicates with the blast.

The letter E represents abarrel or box for holding water, and in this barrel is fixed the pipe Gr, piercing the side near the bottom, and extending to the head ofthe drum at the side ot' the tuyere. It is screwed or otherwise secured in the head of the drum, and serves as an induction-pipe for the water from the reservoir to the tuyere-pipes.

The. letter G' represents the eduction-pipe fixed in the head of the drum C', and leading from thence to the water-source, into which it extends and deposits the condensations orloW.

The fireplace with. an opening sits over the casing of the tuyere-chamber, and is ot' the usual construction.

It will be observed by reference to the drawings thatthe operation is as follows: The reservoir-barrel being filled with water, it courses through the pipe fixed in the bottom to the drum, with which it connects, and, filling that, passes through the pipes across the tuyerechamber into the other drum, and thence to the pipe leading from that drum to the reservoir. In this operation the face of the tuyere or grate-bar pipes is kept from overheating, thereby preventing the lodgment of slag and oinder on the cross-pipes. It will also be observed that by the construction and arrangement ofthe parts I am enabled to obtain a direct delivery of the blast to the re.

If desired, aseparate reservoir may be placed at the end of each pipe.

When it is desired to remove the slag and cindersfrom the cylinderof the tuyere, the bottom is drawn out and they drop in the ashpit, from where they may be taken by the usual means.

Vhat I claim as my invention,and desire to secure by Letters Patent, is-

l. In a tuyere, the chamber or box A, provided at its upper end with a plurality of waside drums, C C', the supply and return pipes, ter-pipes connected directly with the side Waand reservoir F, substzintiall)7 as described. Io

ter-drums, C C', serving :is grate-bars, and at In testimony whereof I afix my signature its lower end with n removable bottoni, susin presence of two Witnesses. 5 tained in position by means of aflnt spring, GEORG-E NV. RIGGIN.

substantially as described. Witnesses:

2. In a tuycre, the combination of the box V. T. DAVES, A, provided with the horizontal pipes B, the THOMAS B. JONES. 

